/*
 * Copyright 2002-2016 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.springframework.web.servlet.config.annotation;

import org.springframework.format.FormatterRegistry;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.lang.Nullable;
import org.springframework.validation.MessageCodesResolver;
import org.springframework.validation.Validator;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.HandlerExceptionResolver;

import java.util.List;

/**
 * An implementation of {@link WebMvcConfigurer} with empty methods allowing
 * subclasses to override only the methods they're interested in.
 *
 * @author Rossen Stoyanchev
 * @since 3.1
 * @deprecated as of 5.0 {@link WebMvcConfigurer} has default methods (made
 * possible by a Java 8 baseline) and can be implemented directly without the
 * need for this adapter
 */
@Deprecated
public abstract class WebMvcConfigurerAdapter implements WebMvcConfigurer
{

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configurePathMatch(PathMatchConfigurer configurer)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configureContentNegotiation(ContentNegotiationConfigurer configurer)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configureAsyncSupport(AsyncSupportConfigurer configurer)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addFormatters(FormatterRegistry registry)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addInterceptors(InterceptorRegistry registry)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addCorsMappings(CorsRegistry registry)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addViewControllers(ViewControllerRegistry registry)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configureViewResolvers(ViewResolverRegistry registry)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addArgumentResolvers(List<HandlerMethodArgumentResolver> argumentResolvers)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void addReturnValueHandlers(List<HandlerMethodReturnValueHandler> returnValueHandlers)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configureMessageConverters(List<HttpMessageConverter<?>> converters)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void extendMessageConverters(List<HttpMessageConverter<?>> converters)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void configureHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation is empty.
     */
    @Override
    public void extendHandlerExceptionResolvers(List<HandlerExceptionResolver> exceptionResolvers)
    {
    }

    /**
     * {@inheritDoc}
     * <p>This implementation returns {@code null}.
     */
    @Override
    @Nullable
    public Validator getValidator()
    {
        return null;
    }

    /**
     * {@inheritDoc}
     * <p>This implementation returns {@code null}.
     */
    @Override
    @Nullable
    public MessageCodesResolver getMessageCodesResolver()
    {
        return null;
    }

}
